Answer:
Not sure exactly which equivalent expression you are looking for but my goal would be to write it without the negative exponent.
Step-by-step explanation:
They have the same exponent and it is multiplication.
There is a law of exponent that says 
.
So we have 
equals 
.
Let's simplify (4*7)^(-2).
Since 4*7=28, we can say 
.
Some people really hate that negative exponent. All that - in the exponent means is reciprocal. So 
.
Answer:
Step-by-step explanation:
If you divide 
by 4 (both numerator and denominator)
You get which is equivalent to the given ration
Answer:
<em>Diameter Length: ( About ) 5.4 km; Option B</em>
Step-by-step explanation:
~ Let us apply the Area of the Circle formula πr^2, where r ⇒ radius of the circle ~
1. We are given that the area of the circle is 22.9 km^2, so let us substitute that value into the area of the circle formula, solving for r ( radius ) ⇒ 22.9 = π * r^2 ⇒ r^2 = 22.9/π ⇒ r^2 = 7.28929639361.... ⇒
<em>radius = ( About ) 2.7</em>
2. The diameter would thus be 2 times that of the radius by definition, and thus is: 2.7 * 2 ⇒ ( About ) 5.4 km
<em>Diameter Length: ( About ) 5.4 km</em>
Answer:
the answer is 2 you add one and the other one and it makes 2
Step-by-step explanation:
